Machine for cutting and embossing leather



UNITED STATES PATENT Trice,

SETH D. TRIPP, OF LYNN, MASSACHUSETTS.

MACHINE FOR CUTTING AND EMBOSSING LEATHER..

To all whom it may concern:

Beit known that I, SETHUTRIPP, of Lynn, in the county of Essex and Stateof Massachusetts, have invented a new and Improved Machine for Cuttingand Embossing Leather; and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming a part of this Specification, inwhich- Figure l represents a transverse vertical s ction of myinvention.Fig. 2 isa sideelevation of the same. Fig. 3 is a plan or top view ofthe same. l

Similar letters of reference in the three views indicate correspondingparts.

This invention relates to amachine intended to cut rectilinear or curvedslips of leather, paper, cardboard, muslin, or other similar material ofa unif'orm size, or to emboss such naterial at regular intervals, or tocut and emboss it simultaneously by the automatic a t`on of arising-and-falling head carrying the cutter or die, or both, incombination with a vertically-adjustable bed and reciprocatingself-acting feed apparatus.

The peculiar construction of my machine and its advantages will bereadily understood from the following description:

A represents a frame, made of castiron or other suitable material, andprovided on its ends with lugs a, that are perforated to form the guidesfor the rods bf The upper ends of tiese rods are rmly secured to thehead B, which carries the cutter or embossing-die, and their-.lower endsare hinged to straps c, which embrace the eccentric disks d. Theseeccentrics are Iirmlysecurcd to the driving-shaft C and by their actiona reciprocating rising-andalling motion is imparted to the head B.

D is the cutter, which may be curved or rectilinear, according to thework to be cut, and said cutter is secured by means of setscrews e in abox, E, that is secured in the head B by screwsf, or in any .otherdesirable manner. By releasing the screws f a lateral motion can beimparted to the box E with the cutter, or said box may be removed andreplaced by another of difterent size.

Instead of a cutter, an embossing-die might be insertedin the head B,or, if desired, bot-l1 the cutting and embossing tools might be usedsimultaneously in the same head.

The material to be cut or embossed is fed automatically and regularly tothe cutter or die by the action of the feed mechanism, which consists ofa small table, g, on which the material is held down by fingers h. Thesefingers are secured to a rock-shaft, i, which passes through boxes gt,secured to the ends of the table g, and they are pressed down upon the-material by the action of a spring, ht, acting on a cam, it, which isfirmly secured to one end ofthe rock-shaft c. This rockshaft has itsbearings in the upper ends of arms j, which are secured at their lowerends to a shaft, F, that receives an intermittent oscillating motion bythe action of a cam, G, on a lever, H, which is secured to said shaftand pressed up against the circumference of the cam by a spring, k. Thecam G is fastened to the drivin g-shaft C, and as thc same rotates theloose end of the llever H is depressed, causing the arms j to swing inthe direction of the arrow marked thereon in Figs. l and 2, and therebythe feed-table and rockshaft i, tog ther with the material, are movt dtoward the cutter or die in the head B. When the cam has roiated farenough to cause the shoulderV to pass the projection of the lever H,said lever is suddenly raised by the laction of the spring 7c and thefeeding mechanism recedes, ready for a new move. The amount of motion ofthe lever H is regulated by the adjustable stop kt, which is secured tothe frame A, and by its action the feed moticn can be increased ordiminished at pleasure. In receding, the feeding mechanism releases thematerial, and at the same time the material is held rm and preventedfrom going back with the feed mechanism. This double object is effectedby the following means: A tappet, m, is secured to the rising-and-falLing head B, (see Fig. 2,) and as this head descends said tappet strikesa lever, a, which is pivoted to the frame A, and one arm of which bea-rsunder a nger, a, that is firmly secured to the rock-shaft i. As thetappet m strikes the lcvern the finger o is raised and the rockshaft t'turns suiiccntly far to cause the fingers h to release the material onthe feed-table g. Simultaneously with this operation the cut*I tingoperation is effected and a pin, p, inserted in the head B, bears downupon the end of the material and holds it firmly until the feedingmechanism has receded. The pin p is held down by a spring, pit, whichallows the same to yield and to accommodate itself to the thickness ofthe material to be cut or embossed.

I is the platform or table which supports the material during the timethe cutter or die take effect. This table is made of a thick block ofwood, which is secured or adjusted in the frame A by means of screws q,which pull it down, and by screws q', which push it up. lhe nuts q* ofthe screws q are formed by round pieces of iron inserted intocorresponding holes bored transversely through said block and cut out tomake room for the screws, as clearly shown in Fig. 1, and the set-screwsq bear against a cast-iron plate, J, which slides up and down betweenthe uprights ot the frame A, and is fastened in the desired position byset-screws q. By these means thc surface of the block or table I canalways be adjusted to conform perfectly to the cutting-edge of thecutter or to the workingface of the die. 'l`hc feedtable g rests upontwo arms, g', which extend from the frame A, and which form the bearingsfor a ron, s. This rod forms the guide for two gages, t, that are set tocorrespond to the width of the material to be cut or embossed, and serveto conduct such material in the proper position over the feed-table. Bythesel means material of any desired width can be passed through themachine and cut or embossed uniformly and evenly, and if the machine isonce properly set it requires little or no attention until it has to bechanged for work of a different nature.

What l claim as new, and desire to secure by Letters Patent, is-

l. The adjustable block or table I, in combination with therising-andfalling head B, and with the automatic feed mechanism,constructed and operating substantially in the manner and for thepurpose shown and described.

2. The adjustable box E, in combination A with the head B, cutter or dieD, and table I, constructed and operating substantially as and for thepurpose set forth.

3; The tableg and ngers h, in combination with the armsj, lever H, camG, and adjustable stop kit, constructed and operating substantially asand for the purpose specified.

4. The tappet m., lever a, and nger o, in combination with thecutter-head B, table g, and fingers h, constructed and operatingsubstantially as and for the purpose described.

5. The yielding pin p, in combination with the feed mechanism, and withthe mechanism for releasing the material from the fingers 71,constructed and operating substantially as and for the purposespecified.

6. The adjustable plate J, in combination with the frame A, block I, andscrews q q q, constructed and operating substantially as and for thepurpose set forth.

SETH D. TRIP?. Witnesses:

H. H. FRENCH, F. B. WEEKS.

